Objective Observation of Posterior decompression dural enlargement repair + Resection of the cerebellar tonsils and Posterior decompression dural enlargement repair two operation method for treatment of Chiari Ⅰ malformation effect.Methods Retrospectively analyze the clinical data from Jan.2006 to Jun.2012,the department of Neurosurgery,People's Hospital of Xinjiang Uygur Autonomous Region for a total of 97 cases of Chiari Ⅰ malformation.Group A was performed in 55 cases for Posterior decompression dural enlargement repair + Resection of the cerebellar tonsils,group B was performed in 42 cases for Posterior decompression dural enlargement repair,and was compared of the effect of the operation,Syringomyelia resolution and the rate of postoperative complications.Results Outpatient follow up for 6 months-8 years,a total of 85 patients were followed up for.According to the criteria of Tator,A,B two groups in the superior,good,poor rate was no significant difference (P ＞ 0.05).Promote syringomyelia regression had no significant difference(P ＞ 0.05).A,B two groups of postoperative incision infection were 5 cases and 4 cases,Postoperative transient headache were 25 cases,18 cases.Early postoperative cerebrospinal fliud leakage and subcutaneous effusion were 8 cases,6 cases.One cases died in group A.The total complication rate had no significant difference (P ＞ 0.05).Conclusions Posterior decompression dural enlargement repair + Resection of the cerebellar tonsils and Posterior decompression dural enlargement repair both are the treatment of Chiari Ⅰ malformation and reliable method.No significant difference exists between the effects of two operation,while the posterior decompression dural enlargement repair operation steps to reduce the damage.

Objective: To analyze the curative effect of 56 cases with surgical operation of congenital tumor in conus medullaris position, to provide valuable reference information for the surgical operation of congenital tumor in conus medullaris position. Methods: The cases were from 56 patients with congenital tumors in conus medullaris position in Xinjiang Uygur municipal people's hospital from January 2015 to February 2018. According to the classifications of congenital tumors in the conus medullaris position, surgical operation was performed on patients. The curative effect of patients with all kinds of congenital tumors in the conus medullaris position was analyzed and summarized. Results: After 9 months of the follow-up: ⑴ There were totally 18 cases of epidermoid cysts, 16 cases with obvious improvement in lower limb numbness and lower limb motor function, 13 cases with the pain degree effectively relieved and 3 cases without significant improvement in early defecation function. ⑵ There were 15 cases of teratomas, 13 cases without significant improvement in lower extremity numbness, 2 cases with reduced lower extremity numbness, 3 cases with reduced urination and defecation function disturbance and 1 case not recovered. There was no recurrence of tumor. ⑶ There were 8 lipoma patients who were cured and discharged without urination and defecation function disturbance. Life was basically self-sustaining. ⑷ There were 9 cases of hemangioblastoma with significant improvement in spinal cord function, 5 cases without postoperative pain symptoms and 1 case with significant improvement in pain degree. ⑸ There were 6 cases of ependymoma, 2 cases with significant reduction on limb numbness symptoms, 1 case with urinary retention after surgery. There was no significant change in muscle strength of the 2 cases before and after surgery. Conclusions The clinical effect of surgical operation of congenital tumor in conus medullaris position is clear. Combined with imaging examination and attention to surgical precautions, the surgical treatment effect of congenital tumors in the conus region of the spinal cord can be effectively improved.